10% of X degree is the complement of 40% of 2 X degree find x
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(10/100×X°)+(40/100×2×X°)=90°
=>50X°/100+80X°/100=90°
=>130X°/100=90°
=>130X°=9000°
=>X°= 9000/130
=>X°= 69.2307692308
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